The table assembly comprises a first side wall, a second side wall, a first table top and a first support. The first side wall comprises a plurality of first side wall mortises. The second side wall comprises a plurality of second side wall mortises. The first table top comprises at least one first table top tenon. The first support comprises two first support tenons. The method comprises: coupling the first support to the first side wall by coupling one of the first support tenons to the first side wall mortise; coupling the first support to the second side wall by coupling another one of the first support tenons to the second side wall mortise; and coupling the first table top to the first side wall via coupling the first table top tenon to the first side wall mortise, wherein the first table top is supported by the first support.

The table assembly comprises a first side wall, a second side wall, a first table top and a first support. The first side wall comprises a plurality of first side wall mortises. The second side wall comprises a plurality of second side wall mortises. The first table top comprises at least one first table top tenon. The first support comprises two first support tenons. The method comprises: coupling the first support to the first side wall by coupling one of the first support tenons to the first side wall mortise; coupling the first support to the second side wall by coupling another one of the first support tenons to the second side wall mortise; and coupling the first table top to the first side wall via coupling the first table top tenon to the first side wall mortise, wherein the first table top is supported by the first support.

A Three-Dimensional Positioning and Holding Modular System for office and industrial work stations including embodiments of multi-rail beams and rail-arm-leg modules. The embodiments have tubes, bars, or channels arranged and connected in ways that provide improved ability to transmit torque along a long axis of the multi-rail beam while providing improved resistance to twisting under the forces of the torque.

A Three-Dimensional Positioning and Holding Modular System for office and industrial work stations including embodiments of multi-rail beams and rail-arm-leg modules. The embodiments have tubes, bars, or channels arranged and connected in ways that provide improved ability to transmit torque along a long axis of the multi-rail beam while providing improved resistance to twisting under the forces of the torque.

An open triangle made of rigid material planes each joined ninety degrees to one another and of sufficient thickness, rigidity, precision and construction for the triangle as a whole to serve as a brace for clamping, aligning, and joining workpieces, especially three workpieces at ninety degrees to one another; the opening of the triangular brace serving as a space for the operation of joining the workpieces, especially joining by means of high-heat welding but also by other means of joining, like drilling and fastening with bolts; the triangular brace being constructed of one piece, or a plurality of pieces in which one plane or all planes of the said brace are removable and re-attachable, or rotatable in and out of position, by means of screws, bolts, pins, interlocking tongue-and-groove, magnets, axle for rotation, or other secure means.

An open triangle made of rigid material planes each joined ninety degrees to one another and of sufficient thickness, rigidity, precision and construction for the triangle as a whole to serve as a brace for clamping, aligning, and joining workpieces, especially three workpieces at ninety degrees to one another; the opening of the triangular brace serving as a space for the operation of joining the workpieces, especially joining by means of high-heat welding but also by other means of joining, like drilling and fastening with bolts; the triangular brace being constructed of one piece, or a plurality of pieces in which one plane or all planes of the said brace are removable and re-attachable, or rotatable in and out of position, by means of screws, bolts, pins, interlocking tongue-and-groove, magnets, axle for rotation, or other secure means.

An joint is provided for modular furniture. The joint includes a locking tab which is held in a slot such that the tab cannot be moved out of a locking section of the slot without elastically bending the tabbed panel to prevent inadvertent disassembly of the item of furniture. The tab and slot configuration may also provide increased stiffness and rigidity to the piece of furniture while allowing the piece of furniture to be assembled without fasteners such as screws or nails.

An joint is provided for modular furniture. The joint includes a locking tab which is held in a slot such that the tab cannot be moved out of a locking section of the slot without elastically bending the tabbed panel to prevent inadvertent disassembly of the item of furniture. The tab and slot configuration may also provide increased stiffness and rigidity to the piece of furniture while allowing the piece of furniture to be assembled without fasteners such as screws or nails.

The present disclosure relates to a connecting structure for connecting support feet and a center piece, a support foot, a center piece, a chassis and a seat, and belongs to the technical field of seat connection structures. The connecting structure for connecting support feet and a center piece includes: center piece connecting portions provided on the outer periphery of the center piece for connecting with the support feet; support foot connecting portions provided on one end of the support feet for connecting with the center piece. Two side walls of each of the center piece connecting portions are further provided with rotation limit grooves, with a clamping platform arranged inside; two side surfaces of the support foot connecting portion are respectively provided with rotation limit protrusions outwardly protruding, an abutting portion is provided on the lower surface. The connecting structure for connecting support feet and the center piece is stable in force, and no stress point with weak strength exists, such that the corresponding chassis and seat have reliable performance and long service life.

The present disclosure relates to a connecting structure for connecting support feet and a center piece, a support foot, a center piece, a chassis and a seat, and belongs to the technical field of seat connection structures. The connecting structure for connecting support feet and a center piece includes: center piece connecting portions provided on the outer periphery of the center piece for connecting with the support feet; support foot connecting portions provided on one end of the support feet for connecting with the center piece. Two side walls of each of the center piece connecting portions are further provided with rotation limit grooves, with a clamping platform arranged inside; two side surfaces of the support foot connecting portion are respectively provided with rotation limit protrusions outwardly protruding, an abutting portion is provided on the lower surface. The connecting structure for connecting support feet and the center piece is stable in force, and no stress point with weak strength exists, such that the corresponding chassis and seat have reliable performance and long service life.